:root {
  color-scheme: light dark;
  --bg: #0f1117;
  --surface: #171923;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #5865f2;
  --border: #2d3142;
  --max-width: 760px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --surface: #ffffff;
    --text: #1a1d21;
    --muted: #5f6368;
    --border: #dadce0;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    'Segoe UI',
    system-ui,
    -apple-system,
    sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 1.25rem;
}

header .wrap,
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
}

header p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

nav {
  margin-top: 1rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

main h2 {
  margin-top: 2rem;
  font-size: 1.15rem;
}

main h2:first-of-type {
  margin-top: 0;
}

main p,
main li {
  color: var(--text);
}

main ul {
  padding-left: 1.25rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}